June 2014 in “Toxicologie analytique et clinique/Annales de toxicologie analytique” Hair analysis can be unreliable due to external contamination and varying drug concentrations.
March 1983 in “The Journal of the American Dental Association” May 2026 in “Comprehensive Psychoneuroendocrinology” Hair analysis can effectively assess long-term hormone activity in young children.
September 2025 in “International Journal of Molecular Sciences” Hair analysis could help diagnose and treat schizophrenia more effectively.
March 2024 in “American journal of veterinary research” Clippers are the best tool for collecting dog hair for chemical tests, being fast and stress-free for the dog.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
December 2019 in “Periodicals of Engineering and Natural Sciences (PEN)” Hair analysis can provide insights into a person's medical history and location over time.
December 2019 in “Periodicals of Engineering and Natural Sciences (International University of Sarajevo)” Machine learning can predict hair health accurately using personal data.
January 2019 in “Trace Elements in Medicine (Moscow)” Hair analysis may help monitor health in children with Down syndrome and obesity.
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.
The research found that people's hair proteins vary by individual and body part, with some differences between ethnic groups, which could help in forensics.
25 citations
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June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.
20 citations
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February 2004 in “Veterinary dermatology” Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.
3 citations
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January 2021 in “Plastic and Aesthetic Research” Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.
1 citations
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March 2015 in “Journal of Visualized Experiments” Researchers developed a new, precise method to measure hair loss in mice using image analysis.
An automated system can accurately classify hair disorders using image analysis.
March 2024 in “International journal of molecular sciences” The research identified key proteins that affect wool fiber thickness in Angora rabbits.
November 2023 in “Borneo Journal of Pharmacy” Sappan wood hair tonic helps protect and repair damaged hair.
47 citations
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July 1997 in “British Journal of Dermatology” The inner root sheath is crucial for hair follicle stability during the transition from growth to involution.
46 citations
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February 1983 in “The Journal of Dermatology” Hair regrowth slows with age due to changes in enzyme activity.
31 citations
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February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
29 citations
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August 2011 in “PubMed” Hair and nail proteins, mainly keratins, are crucial for structure and can indicate health issues.
25 citations
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October 2018 in “PloS one” Key genes regulate hair follicle phase changes in Inner Mongolia cashmere goats.
24 citations
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April 2020 in “Cells” DNA methylation and long non-coding RNAs are key in controlling hair growth in Cashmere goats.
24 citations
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April 2016 in “Experimental Dermatology” Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
23 citations
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February 2015 in “International Journal of Molecular Sciences” Colchicine can inhibit hair growth by affecting cell activity and protein expression in hair follicles.
23 citations
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July 1997 in “British Journal of Dermatology” The inner root sheath is vital for hair follicle stability during growth changes.
17 citations
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June 2020 in “Animals” lncRNAs may regulate hair follicle development in Hu sheep.
16 citations
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November 2013 in “European Journal of Dermatology” Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.
11 citations
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January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.